Dimensions Of Physical Quantities

The nature of a physical quantity is described by its dimensions. All the physi… Read more Dimensions Of Physical Quantities

Rules for Determining the Uncertainty in the Results of Arithmatic Calculations

The rules for determining the uncertainty or error in the number/measured quant… Read more Rules for Determining the Uncertainty in the Results of Arithmatic Calculations

Rounding off the Uncertain Digits

The result of computation with approximate numbers, which contain more than one… Read more Rounding off the Uncertain Digits

Rules for Arithmetic Operations with Significant Figures

The result of a calculation involving approximate measured values of quantities… Read more Rules for Arithmetic Operations with Significant Figures

Significant Figures

As discussed above, every measurement involves errors. Thus, the result of meas… Read more Significant Figures

Combination of Errors

If we do an experiment involving several measurements, we must know how the err… Read more Combination of Errors

Absolute Error, Relative Error and Percentage Error

(a) Suppose the values obtained in several measurements are $a_1$,  $a_2$ ,  $a… Read more Absolute Error, Relative Error and Percentage Error

Accuracy, Precision Of Instruments and Errors In Measurement

Measurement is the foundation of all experimental science and technology. The r… Read more Accuracy, Precision Of Instruments and Errors In Measurement

Measurement Of Time

To measure any time interval we need a clock. We now use an atomic standard of … Read more Measurement Of Time

Measurement of Mass

Mass is a basic property of matter. It does not depend on the temperature, pres… Read more Measurement of Mass